Version 3.2, published 28 July 2017, is here. It contains additions and corrections to v3.1.


1. The Rendaku Database is an Excel file and utilizes conditional formatting. If you have an old version of Excel you will still be able to open the file and manipulate the data, although you may not have conditional formatting functionality.

2. The Rendaku Database may contain errors. Please do contact me if you find any.

  1. 3.If you use this file for research purposes, please reference it as ‘Irwin, Mark, Miyashita, Mizuki & Russell, Kerri 2017. The Rendaku Database v3.1.

4. If you would like to volunteer to help on the database, please contact me. Japanese native speakers are desperately needed!

5. The Rendaku Database was begun as part of the NINJALThe Japanese Lexicon: A Rendaku Encylopaedia’ Project. The authors would like to express their thanks for all assistance received, financial and otherwise.

Earlier versions:

Version 1.0, published 21 Nov. 2012, is here.

Version 1.1, published 1 Mar. 2013, is here.

Version 2.0, published 21 Jun. 2013, is here.

Version 2.1, published 10 Sep. 2013, is here.

Version 2.2, published 6 Jan. 2014, is here.

Version 2.3, published 1 May 2014, is here.

Version 2.4, published 26 Aug. 2014, is here.

Version 2.5, published 30 Jan. 2015, is here.

Version 2.6, published 17 Jul. 2015, is here.

Version 2.7, published 5 Jan. 2016, is here.

Version 2.8, published 4 Apr. 2016, is here.

Version 3.0, published 14 Jul. 2016, is here.

Version 3.1, published 21 Feb. 2017, is here.